Dispensing bottle stopper



June 7, 1927.

E. H. BARKER DISPENSING BOTTLE STOPPER f n QWV /WH a Filed July 9, 1921 W wa all

Patented June 7, 1927.

UNITED STATES PATENT OFFICE.

EDVI' IN H. BARKER, OF MOYLAN, PENNSYLVANIA, ASSIGNOR TO A. H. WIRZ, INC., OF CHESTER, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

DISPENSING BOTTLE STOPPER.

Application filed July 9, 1921. Serial No. 483,429.

My invention relates to dispensing bottle stoppers of a general type familiar in perfumery and for like uses.

The purpose of my invention is to secure the dispensing top more reliably and more easily to the cork.

A further purpose is to 'roughen the interior of a sleeve or shank upon a cap which is intended to fit down into a circular slit in the cork. I prefer to thread the shank.

Further purposes will appear in the specification and in the claim.

I prefer to illustrate form only, selecting a form which has been found to be practical, efficient, inexpensive and of easy manufacture, and which at the same time well illustrates the principles of my invention.

Figure 1 is a vertical central section of a bottle stopper illustrating the preferred form of my invention and showing the cork in position. I

Figure 2 is a section corresponding to Figure 1 but omitting the cork.

In the specification similar numerals indicate like parts.

My invention is applied to a bottle stopper top having a flanged upper surface 5, a pouring spout 6 connected with it and de pending ring, collar or shank 7 fitting into a circular slit 8 within the cork 9.

This form of bottle stopper top has been found to be very desirable, as the pouring spout is used as a guide for a sealing pin or stopper 10 fitting an opening 11 in the cork, giving a ready and reliable seal for the bottle contents, while the shank seals from leakage at the side beneath the flange 5. The pin 10 is connected with a cap 12 which may be cast about it as in some forms or may be riveted to it at 12 as in the illustration.

The general form of stopper illustrated has been subject to one defect only, that the my invention by onehold of the top within the cork provedless secure than was desirable.

Correction of the difficulty by extending the length of the shank presented the objection that it required excessively deep cutting of the cork with corresponding danger of. breakage of that part of the cork withinthe shank from the remainder of the cork, or of requiring that the slit approach too, closely to the outer circumference of the cork in order to prevent this. Both of these dilficulties are more serious in the smaller sizes of the cork than in the larger sizes.

In my present invention I have overcome this defect by roughening the interior 13 of this shank 7 so as to cause it to engage more firmly with the sides of the cork to resist withdrawal of the shank. This causes the additional pressure exerted upon the cork by the projections or other roughening means to press the cork inwardly about the sealing pin 10 when the bottle is closed.

One thread 14 only is shown. This forms an inwardly projecting rib effective for the purpose of retaining the top upon the cork, yet permits the top to be screwed into the cork with a maximum of convenience and speed in assemblage and with a minimum of injury to the cork.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is A cork having an interior pouring opening and a slit about the opening, in combination with a flanged top member having a depending shank adapted to enter the slit and having an interior thread-like projection extending laterally from the shank to increase the grip of the shank upon the cork and the resistance to expansion of the cork about its interior opening and a plug fitting the interior opening.

EDWIN H. BARKER. 

